학술논문
Soil moisture content measurement using optical fiber long period gratings
Document Type
Conference
Author
Source
2017 25th Optical Fiber Sensors Conference (OFS) Optical Fiber Sensors Conference (OFS), 2017 25th. :1-4 Apr, 2017
Subject
Language
Abstract
The use of an optical fibre long period grating (LPG) as a soil moisture sensor is reported. Characterization of the device in both clay and sandy soils revealed a sensitivity to moisture levels in the range 10–50%, and the results were compared with the output from a Theta probe, the standard soil moisture sensor, which measures the impedance of the soil.